云存储及其分布式文件系统研究

Research on Cloud Storage and Its Distributed File System

云存储专注于解决云计算系统中海量数据文件的存储问题;文件系统用来管理大量的文件信息,并负责对文件的存储空间进行组织分配;分布式文件系统不仅要管理本地计算机的数据文件,同时还要管理整个存储系统中的数据文件。文章首先对云计算技术进行介绍,然后引出云存储的概念,并通过对云存储的技术原理、性能优势等进行分析,指出分布式文件系统对于云存储技术的重要性;最后对现有的云存储分布式文件系统进行详细论述。全文工作将指导我们进一步深入研究云存储技术。

Cloud storage focuses on the storage issue of mass data and document in the cloud computing system. File system is used to manage the mass of data information, and also responsible for the deployment and assignment of storage capability of stor- age system. Distributed file system is adopted to manage the data document of the local computer, as well as that of the whole stor- age system. The cloud computing technology is introduced firstly in this paper, and then we bring out the concept of cloud storage. According to analyzing the technology principle, performance advantage of cloud storage system, we highlight the significance of dis- tributed file system in the cloud storage technology. Finally, the existing cloud storage distributed file systems are discussed and summarized in detail. This work will assist us in further studying cloud storage technology in the future.